Exercise 3: A Recurring Pattern, Not an Isolated Case — Possible Solution
==================================================================================================================

This exercise is asking you to identify the specific earlier pattern
Yezhov's own fall repeats, rather than treating his arrest and
execution as a one-off event unconnected to anything else in the
course.

WHAT THE PATTERN LOOKS LIKE, TRACED FROM CHAPTER 7 ONWARD
Chapter 7 showed Stalin using Zinoviev and Kamenev against Trotsky,
then discarding them once Trotsky was defeated. It showed him using
Bukharin's own gradualist position against the Left, then reversing to
defeat Bukharin himself using the Left's own arguments. In each case, a
figure who had genuinely helped Stalin defeat one rival was later
removed once their own usefulness had ended.

WHAT YEZHOV SPECIFICALLY DID FOR STALIN
As head of the NKVD, Yezhov personally ran the machinery that arrested,
tried, and executed Zinoviev, Kamenev, and Bukharin - directly carrying
out the final stage of the same elimination process Chapter 7 first
described in political terms.

WHY YEZHOV'S OWN FALL FITS THE SAME REAL PATTERN
Once the terror Yezhov ran had served its real purpose and had begun
drawing unwanted attention to its own scale and excess, Stalin removed
him too - first sidelining him with Beria's appointment as "assistant,"
then formally replacing him, then having him arrested and executed. The
specific method (formal disgrace, then arrest, then execution) differs
from what happened to Zinoviev or Bukharin, but the underlying real
logic is identical: usefulness to Stalin, not personal loyalty or past
service, determined how long any individual survived in his good
graces.

ANSWER: Yezhov's fall fits the pattern first identified in Chapter 7
because it repeats the same real structure - Stalin used him to
eliminate a set of rivals, then discarded him once that specific
usefulness had ended and his continued position had become a
liability - the same dynamic that had already claimed Zinoviev,
Kamenev, and Bukharin, now applied to the very official who had carried
out their own executions.

WHY THIS WORKS AS AN ANSWER
------------------------------
It names the specific earlier instances of the pattern and shows what
Yezhov's own case shares with them structurally, rather than treating
his downfall as an unconnected new development.